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| author | Peter Lieven | 2016-05-30 13:31:13 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi | 2016-06-07 15:40:51 +0200 |
| commit | 117bc3fa22d359db6c4f0c10f34c8c9e00ed64af (patch) | |
| tree | daebd01e11358993b50f6bef3406aab2461d2cd0 /include/block | |
| parent | iostatus: fix comments for block_job_iostatus_reset (diff) | |
| download | qemu-117bc3fa22d359db6c4f0c10f34c8c9e00ed64af.tar.gz qemu-117bc3fa22d359db6c4f0c10f34c8c9e00ed64af.tar.xz qemu-117bc3fa22d359db6c4f0c10f34c8c9e00ed64af.zip | |
block/io: optimize bdrv_co_pwritev for small requests
in a read-modify-write cycle a small request might cause
head and tail to fall into the same aligned block. Currently
QEMU reads the same block twice in this case which is
not necessary.
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-id: 1464607873-28206-1-git-send-email-pl@kamp.de
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include/block')
0 files changed, 0 insertions, 0 deletions